Kaiserpinguin vs Eisbär

Aptenodytes forsteri compared with Ursus maritimus

Key Differences

• Kaiserpinguin is Near Threatened while Eisbär is Vulnerable.
• Eisbär is 11.2x heavier than Kaiserpinguin.
• Eisbär lives longer (25 years vs 20 years).

Taxonomic Classification

Rank	Kaiserpinguin	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Aves (Vögel)	Mammalia (Säugetiere)
Order	Sphenisciformes (Pinguine)	Carnivora (Raubtiere)
Family	Spheniscidae (Penguins)	Ursidae (Bears)
Genus	Aptenodytes (Great Penguins)	Ursus (Bears)
Species	Aptenodytes forsteri	Ursus maritimus

Evolutionary Relationship

Kaiserpinguin and Eisbär share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Kaiserpinguin

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Kaiserpinguin	Eisbär
Diet	Carnivore	Carnivore
Average Lifespan	20 years	25 years
Average Length	1.1 m	2.4 m
Average Weight	40.0 kg	450.0 kg

Habitat & Geographic Range

Kaiserpinguin

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Eisbär

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Kaiserpinguin

The world's largest penguin, emperor penguins stand up to 1.2 meters and weigh 45 kg, inhabiting the Antarctic continent in some of the most extreme conditions on Earth. They breed in midwinter darkness at temperatures below -60°C, with males incubating single eggs on their feet under a brood pouch for 65 days while females are at sea. Their huddling behavior — cycling individuals through the warm center of thousands-strong groups — is a masterclass in cooperative survival.

Eisbär

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway